http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Văn hóa Hoa Lộc: Kết quả nghiên cứu 2 địa điểm khảo cổ học ở Hoa Lộc và Phú Lộc huyện Hậu Lộc - Thanh Hóa